噴塑橋架

噴塑電纜橋架是將塑料粉末噴涂在電纜橋架上的一種表面處理方法。

不需稀(xi)料，施(shi)工(gong)(gong)對環境對人體無毒(du)害；涂層外(wai)觀質(zhi)量優異，附著(zhu)力(li)及機械強度強；噴(pen)(pen)涂施(shi)工(gong)(gong)固化(hua)時間(jian)短；涂層耐腐耐磨能力(li)高出(chu)很多(duo)；不需底漆(qi)；施(shi)工(gong)(gong)簡便，對工(gong)(gong)人技術要求低(di)；成(cheng)本(ben)低(di)于噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)(yi)；有些施(shi)工(gong)(gong)場合(he)已經(jing)明確(que)提出(chu)使(shi)用(yong)靜電噴(pen)(pen)塑工(gong)(gong)藝(yi)(yi)處理；靜電噴(pen)(pen)粉噴(pen)(pen)涂過程(cheng)中不會出(chu)現噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)(yi)中常見的流(liu)淌現象(xiang)。

是利(li)用電(dian)(dian)(dian)暈放電(dian)(dian)(dian)現(xian)象使粉末(mo)(mo)涂(tu)(tu)料(liao)吸(xi)附在(zai)(zai)電(dian)(dian)(dian)纜橋架上的(de)。其過程是這樣的(de)：粉末(mo)(mo)涂(tu)(tu)料(liao)由供粉系(xi)統借壓(ya)縮空氣氣體送入(ru)噴(pen)槍，在(zai)(zai)噴(pen)槍前端加(jia)有高壓(ya)靜(jing)電(dian)(dian)(dian)發(fa)生(sheng)(sheng)器(qi)產生(sheng)(sheng)的(de)高壓(ya)，由于(yu)(yu)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)，在(zai)(zai)其附近產生(sheng)(sheng)密集的(de)電(dian)(dian)(dian)荷(he)(he)，粉末(mo)(mo)由槍嘴噴(pen)出時(shi)，形(xing)成(cheng)帶電(dian)(dian)(dian)涂(tu)(tu)料(liao)粒子，它(ta)受靜(jing)電(dian)(dian)(dian)力的(de)作用，被吸(xi)到與其相反的(de)工(gong)件(jian)上去，隨著噴(pen)上的(de)粉末(mo)(mo)增多，電(dian)(dian)(dian)荷(he)(he)積(ji)聚也越(yue)多，當(dang)達到一(yi)定厚度時(shi)，由于(yu)(yu)產生(sheng)(sheng)靜(jing)電(dian)(dian)(dian)排斥作用，便不繼續吸(xi)附，從而(er)使整個工(gong)件(jian)獲得一(yi)定厚度的(de)粉末(mo)(mo)涂(tu)(tu)層，然后經過熱使粉末(mo)(mo)熔融、流平(ping)、固化，即在(zai)(zai)工(gong)件(jian)表面形(xing)成(cheng)堅硬(ying)的(de)涂(tu)(tu)膜(mo)。